fix(vscode): update vscode engine version to 1.96.0 (#2562)

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## Related Issue

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<!-- Fixes #0000 -->

## Summary

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https://github.com/channel-io/bezier-react/actions/runs/12310900865/job/34360202023

```bash
Error: @types/vscode ^1.96.0 greater than engines.vscode ^1.75.0. Consider upgrade engines.vscode or use an older @types/vscode version
Error: Process completed with exit code 1.
```

위 에러를 수정합니다.

## Details

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상위 버전 명시

### Breaking change? (Yes/No)

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No

## References

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aware of -->

-
https://code.visualstudio.com/api/working-with-extensions/publishing-extension#visual-studio-code-compatibility

packages/bezier-vscode/package.json

@@ -20,7 +20,7 @@
     "extension"
   ],
   "engines": {
-    "vscode": "^1.75.0"
+    "vscode": "^1.96.0"
   },
   "activationEvents": [
     "onLanguage:typescript",